Use driver pattern for e2e tests (#829)

I've moved all the logic relevant to WBIO into a single file in order to
be able to replace it.
I have tried to upgrade WDIO in order to use the latest version and it
got stuck on my computer.
Furthermore, I was not able to run it locally which made this whole
cycle very long.
After this will be merged I will replace WDIO with cypress.
This doesn't change anything, only moves some code in the tests to a
single file, removes unneeded files and uses the driver pattern, which
will later allow switching the underline WDIO with Cypress.

cc: @nyurik

config/wdio.conf.js

@@ -27,7 +27,7 @@ exports.config = {
   ],
   // geckodriver-0.31 seems to have problems as of 2022 May 1
   services: process.env.DOCKER_HOST ? [] : [ ['selenium-standalone', { drivers: { firefox: 'latest', chrome: 'latest' } } ] ],
-  logLevel: 'info',
+  logLevel: 'warn',
   bail: 0,
   screenshotPath: SCREENSHOT_PATH,
   hostname: process.env.DOCKER_HOST || "0.0.0.0",